Examining Marine Water Quality Management in South African Seaports PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Examining Marine Water Quality Management in South African Seaports PDF full book. Access full book title Examining Marine Water Quality Management in South African Seaports by Simphiwe Innocentia Mazibuko. Download full books in PDF and EPUB format.
Author: Simphiwe Innocentia Mazibuko
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 0
Get Book Here
Book Description
Author: Simphiwe Innocentia Mazibuko
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 0
Get Book Here
Book Description
Author: R. D. Walmsley
Publisher:
ISBN: 9781868455256
Category : Harbors
Languages : en
Pages : 141
Get Book Here
Book Description
Author: Thean Potgieter
Publisher: AFRICAN SUN MeDIA
ISBN: 1920338055
Category : Social Science
Languages : en
Pages : 150
Get Book Here
Book Description
Two thirds of the world population lies within 60 kilometres of the sea. Much of the well-being of our planet is dependent on the sea, as the bulk of international trade passes across oceans and through ports, while the sea is a rich source of protein and contains profound wealth in terms of energy and natural sources. Inevitably, economic stability and development are therefore closely linked to maritime security. This volume contains a selection of papers presented at an international conference on ?Maritime Security in Southern African Waters? in Stellenbosch on 22-23 July 2008.
Author: Wilfried Michaelis
Publisher: Springer Science & Business Media
ISBN: 3642754139
Category : Science
Languages : en
Pages : 472
Get Book Here
Book Description
All over the world, the awareness of the increasing pollution of rivers, estuaries and the sea with its associated impact on these ecosystems, its effect on organisms, food-chains, water supply and finally on man himself is growing. Estuaries form a link between the limnetic and marine environments, characterized by a variety of complex processes. Most of these phenomena are not yet sufficiently understood, making efficient water quality management a difficult task. The volume has two main objectives: to present the latest information on current estuarine research and to elaborate fundamentals and criteria for planners and decision-makers in water quality management.
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 962
Get Book Here
Book Description
Author: Clement Kweku Kyei
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
The deterioration of water quality threatens the functioning of ecosystems and the sustainability of socioeconomic growth and development more especially for a water-stressed country like South Africa (SA). The Olifants river basin, which is one of the nine water management areas in SA, faces serious water scarcity, with declining surface and groundwater quality due to pollution from mining activities, irrigation agriculture, and industrial waste disposal. This has led to great competition for water among different economic sectors and between upstream and downstream users. As a result, the government has implemented a series of pollution control measures with the view to mitigating pollution and water shortage in the basin. This study developed and used a regional, environmental, computable general equilibrium (CGE) model to assess the environmental, economic, and social impacts of protecting the basin"Ë−s water resources. To calibrate the model, the study also constructed an environmental social accounting matrix (ESAM) using the framework of an environmentally extended SAM. Results of the environmental and economic impacts of taxing water pollution suggest that internalising the negative externality of water pollution in the Olifants river basin will effectively reduce pollution discharge (i.e., achieve its environmental goals). This, however, comes at some costs to the regional economy of the basin. The economic burden of the tax happens to be fairly small though, due to the small relative share of the water pollution supply and abatement costs in total production costs. Furthermore, recycling the tax revenue through income transfers to households or a subsidy to pollution abatement mitigates the adverse economic impacts. Results of the distributional impacts of taxing water pollution in the basin indicate that the water pollution tax is progressive (inequity and poverty-reducing) on the income side as the poorest and vulnerable derive lower shares of their income from capital, which bears the biggest burden of the tax. On the expenditure side, however, the tax is regressive (inequity and poverty increasing), due to the higher share of pollution-intensive goods in poor households"Ë−expenditure. The net effect of the tax is, however, not pro-poor. Recycling the tax revenue through a subsidy to pollution abatement sectors reduces the adverse effect of the tax on household welfare whereas uniform direct lump-sum transfers to households"Ë−income results in a progressive outcome. This study has demonstrated the importance of using an integrated framework that allows non-linear substitution possibilities and endogenous price determination to account for both the direct and indirect costs of water quality management policies. The findings should, however, be viewed with caution due to some limitations inherent in basic assumptions of this study. Firstly, demand for pollution abatement services by production sectors, is specified in a simple way using exogenously determined clean-up rates and the assumption that unit costs of pollution abatement are fixed. Secondly, this study did not account for the economic benefits from water quality improvements as well as from technological advancements that lead to reduced pollution intensities.
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 444
Get Book Here
Book Description
Author: J. Bailey
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
Get Book Here
Book Description
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 438
Get Book Here
Book Description
Author: Carol M. Lalli
Publisher: Springer Science & Business Media
ISBN: 1468464019
Category : Science
Languages : en
Pages : 229
Get Book Here
Book Description
The application of mesocosms, defined in this report as artificial 3 3 experimental enclosures ranging in size from 1 m to 10m , to address various problems in the marine sciences has been a relatively recent development. The application of the technology was dictated by the realization that many important ocean processes and interactions cannot be fully understood from observations in the natural environment or in smaller enclosures. Such studies involve, for example, determining the interactions between, and energy transfer from, one trophic level to another, the biogeochemical cycling of elements and compounds, etc. These and similar interactions and rate processes cannot normally be established in situations (nature) where the detection and quantification of rate processes are confused by advection and/or the inability to study the same populations over time. In the case of microcosms, mixed populations of primary producers, consumers, and carnivores cannot be maintained, in balance, for a sufficient length of time to determine normal interactions between the various components of these trophic levels. This report, prepared by SCOR Working Group 85, critically examines past applications of mesocosms to ocean research, though there is no attempt to comprehensively review all literature relevant to the subject. Further, the report outlines some important advances emanating from their use and provides recommendations for future applications. It constitutes the first of two reports from the Working Group (see Introduction).
